How can we be sure that the particles in the rings of Neptune are very small?
A)The rings are faint in forward scattered light.
B)The rings are bright in forward scattered light.
C)Only small particles are produced in comet impacts with larger moons.
D)The magnetic field of Neptune would quickly force large particles out of the rings.

Question

Quizplus · Accepted Answer

The rings of Neptune are bright in forward scattered light, which indicates that they are composed of small particles. Small particles scatter light more effectively in the forward direction, making the rings appear brighter when observed in this way.

How Can We Be Sure That the Particles in the Rings